题目

如图10所示，水平地面上的轻质圆柱形容器甲、乙分别盛有质量均为m的水和酒精，甲、乙的底面积分别为S、2S。（ρ酒精＝0.8×103千克/米3） ① 若乙容器中酒精的质量为1.6千克，求酒精的体积V酒精。 ② 求甲容器中0.1米深处水的压强p水。 ③ 将同一物体分别浸没在两液体中时，液体不溢出。若水和酒精对容器底部压强的变化量分别为Dp水、Dp酒，求Dp水与Dp酒的比值。根据短文内容，选择最佳答案。Mike is 15 years old and Rose is 13 years old. One day they went to see the doctor. Because they had bad colds and coughed terribly. After checking, the doctor gave them two bottles of medicine to take. There are the words on the mark of the bottles:           Attention：1．Shake well before use．2．Take three times daily after meals．3．Dose(用量)：adults(成人)and children over l5 2 teaspoonfuls children 8-14 1 teaspoonful children 3-7 1／2 teaspoonful 4．Not for children below the age of3．5．Store in a cold place．6．Use before December。2011【小题1】Rose should take          a day. Mike should take          a day.A．1 teaspoonful; 2 teaspoonfulsB．2 teaspoonfuls; 1 teaspoonfulC．3 teaspoonfuls; 6 teaspoonfulsD．4 teaspoonfuls; 2 teaspoonfuls【小题2】The medicine should be kept in   A．the sunB．any placeC．hot waterD．a fridge【小题3】Rose should          before she takes some.A．shake the medicine wellB．eat nothingC．not shake the medicineD．drink something【小题4】People aged          can not take this medicine.A．2B．25C．13D．15【小题5】The medicine left should be          after December, 2011.A．eaten in a monthB．throw awayC．kept in a cold placeD．kept in a warm place